Lead and copper

MS0070018 , Slate Springs Water Assn

Every monitoring period on record is listed here. This page applies no date range. The same list limited to the last two years.

Lead and copper 90th-percentile sample summaries for Slate Springs Water Assn, 32 summaries, every one on record. The agency records no date of receipt for any of them.
Analyte	Monitoring period	Samples	90th percentile	Facility	Data quality
Copper	Jan 1, 2024 – Dec 31, 2026	5	0.434 mg/l	DS000	Accepted
Lead	Jan 1, 2024 – Dec 31, 2026	5	0.0019 mg/l	DS000	Accepted
Copper	Jan 1, 2021 – Dec 31, 2023	5	0.17 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Dec 31, 2023	5	0.0016 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	5	0.6958 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	5	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2016	5	0.1994 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2016	5	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2015	6	0.2224 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2015	6	0.0008 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2014	6	0.6363 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2014	6	0.0061 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2013	6	0.3395 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2013	6	0.0008 mg/l	DS000	Accepted
Copper	Jul 1, 2012 – Dec 31, 2012	10	0.3006 mg/l	DS000	Accepted
Lead	Jul 1, 2012 – Dec 31, 2012	10	0.0035 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Jun 30, 2012	10	0.2586 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Jun 30, 2012	10	0.0018 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	6	0.4562 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	6	0.0939 mg/l	DS000	Accepted
Copper	Jan 1, 2003 – Dec 31, 2005	5	0.0983 mg/l	DS000	Accepted
Lead	Jan 1, 2003 – Dec 31, 2005	5	0.0036 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	5	0.029 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	5	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	5	0.086 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	5	0.013 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	5	0.01 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	5	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	11	0.127 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	11	0.002 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	12	0.079 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	12	0.004 mg/l	DS000	Accepted

No date of receipt is recorded for any of these summaries.

This system’s violations

What the 90th percentile is

The 90th percentile of all samples collected from the distribution system is the standard that the US Environmental Protection Agency has chosen for determining compliance with the Lead and Copper Action Level under the federal Lead and Copper Rule. The 90th percentile is determined by ranking all sample results from lowest to highest and finding a result that is 90% of the number of sample results from the top. For example, if there are 10 sample results, the 90th percentile would be the 9th sample result from the top.

From the help text published with these pages.